Logging road



Nov. 15, 1932. A. A. MAcLEoD LOGGI'NG ROAD Filed March 14. 1931 2Sheets-Sheet Nov. l5, 1932.

A. A. MAcLr-:on 1,888,004

LOGGING ROAD Filed March 14, 1931 2 Sheets-Sheet 2 ALLAN/LMACLEODPatented Nov. l5, 1932 UNITEDr STAT islaam ALLAN ALEXANDER MAcLnon, orvIcroRrA, BRITISH COLUMBIA, CANADA LOGGING ROAD Application led March14, 1931, Serial No. 522,741', and inv Canada December 8, 19.30.l

This invention appertains to logging and more particularly to a novelmeans for handling and transporting logs, so as to eliminate thenecessity of providing logging railways, truck roads and the like, andthe consequent difficulties contingent therewith,such as the expensivegrading required for said railways, truck roads, and the like, theexpensive equipment in the form of locomotives and cars, trucks, orother similar means of conveyance, and the cost of operating suchconveyances; the elimination of loading machines or like devicesrequired to load logs on the cars or vehicles, and the cost of operatingthe loading machine, and the necessity of waiting for the return oflogging trains or trucks, and the operation of switches or the like insuch logging railways.

A primary object of my invention is the provision of a novel means fortransporting logs embodyingL a conveyor having a plurality of live rollsfor engaging and carrying the logs whereby the logs can be conveyed vina steady uninterrupted stream, the rolls beingV arranged substantiallyat the ground level, whereby the raising of the logs will be eliminated.

Another salient object of my invention isV the provision of novel meansfor mounting the rolls and novel means for continuously rotating therolls in the desired direction for transporting the logs.

Another important object of my invention is the provision of novel meansfor forming the rolls themselves, whereby the loss will be held properlyaligned and conveyed to the desired destination.

A still further obj ect of my invention is to provide a novel loggingroad of the above character, which will be durable and eiicient in use,one that will be simple and easy to manufacture, and one which can beoperated ata minimum cost.

With these andother objects in view, the invention consists in the novelconstruction,

yone of the vlive logging rolls.y

arrangement and formation of parts, as will be' hereinafter claimed, andillustrated inthe accompanying drawings, in which drawings Figure lis atop plan view of. my improved e logging road, Y i v Figure 2 is a sideelevation of the same,

' Figure .3 is an enlargedA fragmentary top plan view showing one of thelogging rolls in detail, Y

Figure 4 is a detail-view illustrating the operating means for .theendless cable, and

`Figure 5is a detail sectional view through Referring to the drawings indetail, wher'ein slmllar reference characters designate corimprovedlogging road, which includes aplu- Y rality of cross ties-10, which canbe in the naturelof ordinary railroad cross ties. These Vvties l0 areimbedded in the ground in any dedesired material.

asY PATENT .oi-F1os f more specifically described,

responding parts throughout Vthe several Y views, the letter A generallyindicates my Between certain pairs ofthe ties lO, bear ing boxes l2'arerigidlyV secured to the stringpers l1, and these bearing boxesrotatably support the shafts 13 of the logging rolls 14. These loggingrolls 14 are rigidly secured to vthe shafts 13 andare ofv a specialconstruction so as vto permit the effective engagement of these rollswith the logs to betransported.

As shown, the rolls 14 are made smaller in 'o the middle than at theirends and that the same gradually increase in diameter from thetransverse center and the face of the roll is provided with aV pluralityof spursvl, for engaging the logs.

VOne endof each shaft has rigidly secured fthereto beyond the adjacentStringer l1, a lpulley 16 and it is to benoted that these `pulleys' arealternately arranged relative to f of the rolls to the ends of ulthejrolls. This gives, in effect, a` concave roll,

yand 19 are given a single turn about adjacent pulleys, as indicated bythereferenceicharacter. At one end of the roadway I arrange guide sheaveblocks 21, around which are trained the cable 18. At the opposite endofthe roadway is arranged the ldriving engine erally of the plane of saidseries of rolls affording access to said tensioning means and allowingadjustment of the tensioning means during operation of the rolls.

In testimony whereof I affix my signature.

ALLAN ALEXANDER MACLEOD.

(not shown) for operating the driving drum',

22 and idle drum 23. These drums 22 and 23 are driven in the samedirection and can f be adjusted because of the mounting of the drum 23in the slots 24. The drum 22 is provided with a shaft having connectionwith a source of power-through any suitable means such as a belt drive.These drumshave wound about the same the cable 17, and the cable isguided olf and on the rolls by means of sheave blocks 25.

During the rotation of the drums 22 and 28 one run of the endless cablewill bevwound upon the drum while the other run of the cable will bewound off of the drum. As one run yof the cableac-tuates certain ofthelive rolls 14 from one side thereof and the other run engages and drivesthe other rolls from the other side thereof, the rolls will all bejdriven in the sameY direction, and consequently the logs placed on thefirst rolls will be fed to each successive roll and thus eectivelyconveyed down the roadway. It is obvious that a continuous stream oflogs can be fed from one end of the roadway to the other.

Preferably, the rolls are placed about eight rolls when the cable is setin motion.

" The sizes of the rolls, shafts, etc., shown on the plan are aboutwhatwillsuit an ordinary logging operation, but the size may beincreased or diminished according to the size feet apart and thelogrides forward on the of the timber or the requirements of theoperator.

Changes 1n details may be made without I Y departing from the spirit orthe scope of this invention, but

What I claim as new is j In a logging road, a series of parallel rollershaving alternate ends thereof provided with pulleys and the remainingends thereof free of pulleys, a drivingv cable having runs at oppositeends of said rolls and trained about said pulleys, pairs of sheaves atopposite ends of the series of rolls and engaged by said cable, and adriving mechanism engaging that portion ofthe cable between the sheavesof one pair and having means for tensioning the cable, said drivingmeans being spaced lat-

